How to use this calculator
- Enter the refund amount, the date of payment and the date of the refund.
- Choose the type of tax paid and the period to match your situation.
- Read the interest period, the interest and the total refund in the result.
The start of the interest period differs by type of payment; confirm the dates from your tax statements.
The result is an estimate for the figures you enter. It is not a filed return, a certificate or professional advice. Rates, thresholds and section numbers change with each Finance Act, and the Income-tax Act, 2025 applies from 1 April 2026 with new section and form numbers.
For the related work, see Tax audit.
Related calculators
- Thin capitalisation interest limit calculatorFind how much interest paid to foreign associated enterprises is limited under the thin capitalisation rule. Uses the figures you enter.
- Late filing fee calculator for Section 234FCalculate the fee for filing an income tax return after the due date, with interest for delay on the unpaid tax.
- Interest on excess refund calculatorEstimate the interest payable by a taxpayer when a refund granted earlier is found to be excessive on assessment.
- Late fee and penalty calculatorEstimate late fees and penalties for income tax returns, TDS and GST, and the interest that accompanies each. Uses the figures you enter.
- Unexplained income tax, Section 115BBEEstimate tax at the special rate on unexplained credits, investments and expenditure, with surcharge and cess.
- Under-reporting penalty, Section 270AEstimate the penalty on under-reported or misreported income as a percentage of the tax on that income. Uses the figures you enter.
- Cash transaction limits, Section 269ST, 269SS and 269TCheck cash receipts, loans and repayments against the statutory limits and the penalty for default. Uses the figures you enter.
- Cash payment disallowance, Section 40A(3)Estimate the expenditure disallowed when a business pays above the cash limit to one person in a day. Uses the figures you enter.